JP4039022B2 - Front body structure of the vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a front body structure of a vehicle in which a headlamp is attached to a shroud that is connected to a pair of left and right front side frames extending in the front-rear direction of the vehicle and provided at the front of the vehicle.
[0002]
[Prior art]
Conventionally, as a front body structure of a vehicle in the above example, there is a structure described in, for example, Japanese Patent Application Laid-Open No. 6-107229.
[0003]
That is, as shown in FIGS. 11 and 12, a pair of left and right front side frames 81 (only the right side is shown in the drawings) extending in the front-rear direction of the vehicle and the front side frame 81 are connected to the front of the vehicle. A pair of left and right wheel aprons 82 forming the side walls of the vehicle and an apron reinforcement 83 extending in the front-rear direction of the vehicle along the upper end of the wheel apron 82 and connected to the pair of left and right front side frames 81 described above. In this structure, a headlamp 84 is attached to a shroud (not shown) provided at the front of the vehicle.
[0004]
In FIGS. 11 and 12, 85 is a front fender, 86 is a bonnet, and 87 is a front wheel.
In this conventional structure, the partition line 88 between the front fender 85 and the bonnet 86 is formed so as to connect the upper middle of the headlamp 84 and the front pillar 89 in the front-rear direction, as shown in FIG.
[0005]
Therefore, when the partition line 88 is changed from the state shown in FIG. 11 as shown in FIG. 13 in response to the design request, the following problems occur. In this case, the partition line 88 is formed so as to connect the vehicle inner end portion of the headlamp 84 and the front pillar 89 in the front-rear direction.
[0006]
That is, the apron reinforcement 83 needs to be positioned immediately below the partition line 88 of the bonnet 86 in order to ensure the rigidity of the front portion of the vehicle. The front end portion of the apron reinforcement 83 is the upper side end of the shroud. 11, the upper end of the headlamp 84 is stopped by the shroud under the structure of FIG. 11. However, since the shroud cannot be extended in the lateral direction, the headlamp 84 is under the structure of FIG. 13. There is no place to stop 84.
[0007]
Therefore, in the conventional, separately attach the bracket to the vehicle exterior side of the shroud, but the structure for mounting the headlamp 84 is employed for the bracket, the weight of the head lamp 84, a predetermined in the above-mentioned bracket the intensity of the request, the bracket is not only becomes the high rigidity relatively large, increasing the number of parts by the bracket, deteriorated dimensional accuracy and mounting accuracy, the front fender 85 and the headlamp 84 There was also a possibility that the gap between them would become large.
[0008]
[Problems to be solved by the invention]
This invention includes a reinforcing portion provided on the wheel apron as the front end is connected to the vehicle width direction outer end portion of the shroud, the wheel apron upper, extends in the longitudinal direction of the vehicle in the vehicle width direction inside than the reinforcing portion And an apron reinforcement that is connected to the upper part of the shroud at the front end in the vehicle width direction with respect to the connecting portion between the shroud and the reinforcing portion, and the headlamp includes at least a connecting portion between the reinforcing portion and the shroud, and an apron rain By attaching to the shroud between the force and the connection part of the shroud, the design requirement of setting the bonnet partition line regardless of the shape of the headlamp can be satisfied, and the headlamp is assembled to the shroud. It is possible to secure rigidity and prevent deterioration of dimensional accuracy by increasing the number of parts. And an object thereof is to provide a front body structure of a vehicle which can achieve both.
[0009]
[Means for Solving the Problems]
The vehicle front body structure according to the present invention is a vehicle front body structure that is connected to a pair of left and right front side frames extending in the front-rear direction of the vehicle and attaches a headlamp to a shroud provided at the front of the vehicle. A pair of left and right wheel aprons connected to the front side frame to form a side wall of the front part of the vehicle, and a reinforcement provided on the pair of left and right wheel aprons so that the front end is connected to the outer end part in the vehicle width direction of the shroud. parts and, in the wheel apron upper, it extends in the longitudinal direction of the vehicle in the vehicle width direction inner side than the reinforcing portion, and with the front end is connected to the vehicle width direction inner side in the shroud above the connecting part between the shroud and the reinforcing portion, the vehicle A pair of left and right apron reinforcements connected to the wheel apron in the front-rear direction ;
The shroud is integrated with a shroud upper and a shroud drawer connected to the shroud upper below the shroud upper, and is wide in the vertical direction. Both ends of the shroud in the vehicle width direction are the apron rain in the vehicle width direction. The headlamp is formed on the longitudinal extension line of the apron reinforcement in the vicinity of the front end of the apron reinforcement in a plan view. At least the connecting portion between the reinforcing portion and the shroud and the connecting portion between the apron reinforcement and the shroud are attached to the shroud.
The shroud configured as described above may be configured by combining a metal shroud upper and a shroud drawer, or may be integrally formed of a synthetic resin.
According to the above configuration, since at least part of the headlamp is attached to the shroud between the connecting portion between the reinforcing portion and the shroud and the connecting portion between the apron reinforcement and the shroud, the partition line of the bonnet is connected to the headlamp. It is possible to meet the design requirement of setting regardless of the shape of the head, and to assemble the headlamp on the shroud, and to ensure both rigidity and prevention of deterioration of dimensional accuracy due to an increase in the number of parts. .
[0010]
In one embodiment of the present invention, the shroud is integrally provided with a headlamp support portion whose outer end portion in the vehicle width direction is connected to the reinforcement portion and whose upper portion is connected to the apron reinforcement and surrounds the headlamp. The headlamp is attached to the headlamp support.
[0011]
According to the above configuration, since the headlamp support portion surrounding the headlamp is integrally formed with the shroud, the headlamp can be integrally assembled with the shroud, and the dimensional accuracy is further deteriorated. It can prevent well.
[0012]
In one embodiment of the present invention, the rear end of the reinforcing portion is connected to an intermediate portion in the front-rear direction of the apron reinforcement.
According to the said structure, since the apron reinforcement as a rigid member and the reinforcement part were connected, rigidity can further be improved.
[0013]
In one embodiment of the present invention, the reinforcing portion is integrally formed with the wheel apron along the outer end in the vehicle width direction of the wheel apron.
According to the above configuration, since the reinforcing portion is integrally formed with the wheel apron, it is possible to improve rigidity while suppressing an increase in the number of parts and weight.
[0014]
In one embodiment of the present invention, a continuous substantially horizontal plane connected to the shroud lower part and the front side frame is formed at the front lower part of the wheel apron.
[0015]
According to the above configuration, the rigidity below the headlamp support is enhanced by the above-described substantially horizontal plane, so that an oil cooler and other auxiliary equipment can be attached to the lower portion of the headlamp support.
[0016]
In one embodiment of the present invention, the reinforcing portion includes a substantially horizontal portion and a vertical wall portion following the substantially horizontal portion.
According to the said structure, the rigidity of a reinforcement part is securable by the above-mentioned vertical wall part.
[0017]
【Example】
An embodiment of the present invention will be described below in detail with reference to the drawings.
The drawings show a front body structure of a vehicle. In FIGS. 1 and 2, a pair of left and right front side frames 1, 1 extending in the front-rear direction of the vehicle are provided substantially parallel to each other at the front of the vehicle.
[0018]
A bumper reinforcement 2 extending in the vehicle width direction is attached between the front ends of the pair of front side frames 1, 1, and the rear side of the bumper reinforcement 2 is parallel to the bumper reinforcement 2. as such, the front cross member 3 (so-called No1. cross member) is stretched between the front side frames 1, 1.
[0019]
On the other hand, a cowl portion 4 forming an upper rear wall of the engine room and a dash lower panel 5 forming a lower rear wall of the engine room are provided, and a lower middle portion of the dash lower panel 5 is a tunnel portion formed on the floor panel. It comes to communicate.
[0020]
A shroud 6 (a radiator shroud) is erected and fixed to the front end portion of the engine room, that is, the front portion of the vehicle. As shown in FIG. 3, the shroud 6 is formed by combining a metal shroud upper 7 and a shroud drawer 8, but instead of the metal shroud 6, a synthetic resin shroud (so-called so-called shroud 6) is used. Of course, a resin shroud) may be used.
[0021]
The above-described shroud drawer 8 is provided with openings 9, 9 that allow the pair of left and right front side frames 1, 1 to pass through in the front-rear direction, and the front side frames 1, 1 that pass through the openings 9, 9 are provided. The shroud drawer 8 is connected.
[0022]
An upper piece 10 that extends outward in the width direction and obliquely rearward is formed at the upper part of the shroud 6 so as to substantially correspond to the above-mentioned opening 9 forming part, and from the forming part of the opening 9 to the lower part of the shroud 6. The lower piece 11 is formed to extend outward in the vehicle width direction and obliquely rearward, and the side piece integrally connects the outer end of the upper piece 10 and the outer end of the lower piece 11 in the vertical direction. A portion 12 is provided.
[0023]
An annular frame-shaped headlamp support portion 14 surrounding the headlamp 13 by the upper piece portion 10, the lower piece portion 11, and the side piece portion 12 is formed integrally with the shroud 6. , 12 is set in a hole in which the headlamp 13 is disposed.
[0024]
Further, the headlamp mounting bolts 16 in the intermediate portion of the upper piece 10 above (see FIGS. 1 and 2) are formed mounting portion 17 is tightened from above, the head is to the left and right spaced apart portions of the lower arm part 11 Mounting portions 18 and 18 for fastening a lamp mounting bolt (not shown) from the front are formed, and nuts (not shown) are fixed to the mounting portions 18 and 18 in advance by welding.
[0025]
As shown in FIG. 4, the headlamp 13 attached to the above-mentioned headlamp support portion 14 (however, the right headlamp is shown in FIG. 4) is attached to the upper portion of the headlamp housing corresponding to the attachment portion 17. A piece 19 is formed, and attachment pieces 20 and 21 corresponding to the attachment portions 18 and 18 are formed in the lower part of the headlamp housing.
[0026]
Here, a bolt insertion hole 22 is formed in the upper mounting piece 19, and a nut 23 is welded and fixed to the lower surface of the mounting piece 19 in advance, and a bolt insertion hole is inserted into the lower mounting pieces 20 and 21. Although the holes 24 and 25 are formed, at least one bolt insertion hole 25 is set as a long hole that is long in the vertical direction so that the mounting position of the headlamp 13 can be adjusted.
[0027]
By the way, as shown in FIGS. 1, 2, and 5, a pair of left and right wheel aprons 26, 26 are provided which are connected to the front side frame 1 to form a side wall (a side wall of the engine room) at the front of the vehicle.
The wheel apron 26 described above is integrally or integrally formed with a wheel house and a suspension tower 27.
[0028]
5 is an enlarged plan view of the main part of FIG. 2, FIG. 6 is a cross-sectional view taken along line AA in FIG. 5, FIG. 7 is a cross-sectional view taken along line BB in FIG. FIG. 6 is a cross-sectional view taken along line C, and a wheel apron reinforcing portion (hereinafter simply referred to as a reinforcing portion) 28 is integrally formed on the wheel apron 26 along the outer end in the vehicle width direction of the wheel apron 26. .
[0029]
The reinforcing portion 28 includes a substantially horizontal portion 28a and a vertical wall portion 28b following the substantially horizontal portion 28a. As shown in FIG. 2, the reinforcing portion 28 is curved from a portion corresponding to an intermediate portion of the suspension tower 27. Extending outward in the width direction and forward, the front end of the shroud 6 is connected to the outer end of the upper piece 10 in the vehicle width direction to form a first connection portion α.
[0030]
Further, as shown in FIGS. 5 to 8, extending in the longitudinal direction of the vehicle in the vehicle width direction inside than the aforementioned reinforcing portion 28 in the upper part of the wheel apron 26 and the front end of the shroud 6 and the reinforcing portion 28 A pair of left and right apron reinforcements 29 connected to the middle of the upper piece 10 of the shroud 6 on the inner side in the vehicle width direction than the first connecting portion α is provided.
[0031]
As shown in FIG. 9, a perspective view of the apron reinforcement 29 viewed from the front is a main portion 30 having a substantially gate-shaped cross section, and inner and outer joint flange portions 31 along the wheel house shape of the wheel apron 26, 31 is a vehicle body strength member integrally formed with 31.
[0032]
As shown in FIGS. 1 and 2, the apron reinforcement 29 is connected to the middle of the upper piece 10 of the shroud 6 to form the second connection portion β, while the apron reinforcement 29 is provided. The rear end is joined to the left and right extensions 4 a and 4 a of the cowl portion 4 .
[0033]
Further , the rear end of the reinforcing portion 28 is connected to an intermediate portion in the front-rear direction of the apron reinforcement 29 as shown in FIGS. 2, 5, and 6.
A continuous substantially horizontal plane 32 (see FIG. 5) connected to the lower piece portion 11 of the shroud drawer 8 and the front side frame 1 is integrally formed at the lower front portion of the wheel apron 26 integrally formed with the reinforcing portion 28 described above . The rigidity of the headlamp support 14 is improved by the substantially horizontal plane 32.
[0034]
And in the headlamp support part 14 whose rigidity has been improved by the substantially horizontal plane 32 described above, auxiliary parts such as an oil cooler 34 are used at the front part of the lower piece part 11 using bolts 33, 33 as shown in FIG. The kind is installed.
[0035]
In the headlamp support portion 14 described above, the outer end portion in the vehicle width direction is connected to the front end of the reinforcing portion 28 (see the first connecting portion α), and the middle portion of the upper piece portion 10 as the upper portion is the apron reinforcement. The head lamp 13 is connected to the front end of the shroud 6 between the first connecting portion α and the second connecting portion β. It is attached to the lamp support portion 14.
[0036]
In FIG. 8, 35 is a front fender, 36 is a bonnet, 37 is a partition line of the bonnet, and in the figure, OUT indicates the outside in the vehicle width direction, and IN indicates the inside in the vehicle width direction.
[0037]
As described above, the front vehicle body structure of the vehicle of the embodiment shown in FIGS. 1 to 9 is connected to the pair of left and right front side frames 1 and 1 extending in the front-rear direction of the vehicle, and is provided at the front portion of the vehicle. A vehicle body structure of a front part of a vehicle to which a headlamp 13 is attached, a pair of left and right wheel aprons 26, 26 connected to the front side frame 1 and forming a side wall of the front part of the vehicle, and a vehicle having a shroud 6 at the front end. Reinforcing portions 28, 28 provided on the pair of left and right wheel aprons 26, 26 so as to be connected to the outer end portion in the width direction, and in the vehicle longitudinal direction on the inner side in the vehicle width direction from the reinforcing portion 28 above the wheel apron 26. A pair of left and right apron reinforcements that extend and have a front end connected to the upper portion of the shroud 6 on the inner side in the vehicle width direction from the first connecting portion α between the shroud 6 and the reinforcing portion 28. 29, 29, and the headlamp 13 extends at least between the first connecting portion α between the reinforcing portion 28 and the shroud 6 and the second connecting portion β between the apron reinforcement 29 and the shroud 6. It is attached to the shroud 6.
According to this configuration, at least part of the headlamp 13 extends between the first connecting portion α between the reinforcing portion 28 and the shroud 6 and the second connecting portion β between the apron reinforcement 29 and the shroud 6 ( (See the upper part) is attached to the shroud 6 so that the design requirement of setting the partition line 37 (see FIG. 8) of the bonnet 36 regardless of the shape of the headlamp 13 can be satisfied. Assembling is possible, and both the securing of rigidity and the prevention of deterioration of dimensional accuracy due to an increase in the number of parts can be achieved.
[0038]
Further, the shroud 6 has a headlamp support portion 14 integrally connected to the reinforcement portion 28 at the outer end in the vehicle width direction and connected to the apron reinforcement 29 at the upper portion and surrounding the headlamp 13. The headlamp 13 is formed and attached to the headlamp support 14.
[0039]
According to this configuration, since the headlamp support portion 14 surrounding the headlamp 13 is integrally formed with the shroud 6, the headlamp 13 can be integrally assembled with the shroud 6, and dimensional accuracy can be obtained. It is possible to prevent the deterioration of the film even better.
[0040]
Further, the rear end of the reinforcing portion 28 is connected to an intermediate portion of the apron reinforcement 29 in the vehicle front-rear direction.
According to this configuration, since the apron reinforcement 29 as the rigid member and the reinforcing portion 28 are connected, the rigidity can be further increased.
[0041]
In addition, the reinforcing portion 28 is integrally formed with the wheel apron 26 along the outer end of the wheel apron 26 in the vehicle width direction.
According to this configuration, since the reinforcing portion 28 is integrally formed with the wheel apron 26, it is possible to improve rigidity while suppressing an increase in the number of parts and weight.
[0042]
In addition, a continuous substantially horizontal plane 32 connected to the lower portion of the shroud 6, that is, the shroud drawer 8 (see the lower piece portion 11 for details) and the front side frame 1 is formed at the lower front portion of the wheel apron 26.
[0043]
According to this configuration, the rigidity below the headlamp support 14 is enhanced by the above-described substantially horizontal plane 32, so that the oil cooler 34 and other auxiliary machines can be attached to the lower part of the headlamp support 14.
[0044]
Further, the reinforcing portion 28 includes a substantially horizontal portion 28a and a vertical wall portion 28b following the substantially horizontal portion 28a as shown in FIGS.
According to this structure, the rigidity of the reinforcement part 28 is securable by the above-mentioned vertical wall part 28b.
[0045]
FIG. 10 shows another embodiment of the front body structure of the vehicle. In the previous embodiment shown in FIG. 8, the above-described reinforcing portion 28 is formed integrally with the wheel apron 26. In this embodiment shown in FIG. An extension member 40 made of a separate member is provided on the upper part of the wheel apron 26 so as to extend from the wheel apron 26, and the wheel apron 26 and the extension member 40 are integrated by welding means or the like. The reinforcing portion 28 is integrally formed along the outer end in the width direction. Also the main surface of the extension member 40 described above integrally form the uneven portion 41, and reduce sensitivity of the member 40.
[0046]
Even in this configuration, the other configurations, operations, and effects are almost the same as those of the previous embodiment. Therefore, in FIG. Description is omitted.
[0047]
In the correspondence between the configuration of the present invention and the above-described embodiment,
The connecting portion between the reinforcing portion and the shroud of the present invention corresponds to the first connecting portion α of the embodiment,
Similarly,
The connecting part between the apron reinforcement and the shroud corresponds to the second connecting part β,
The present invention is not limited to the configuration of the above-described embodiment.
[0048]
For example, the apron reinforcement 29 described above may be formed integrally with the wheel apron 26.
[0049]
【The invention's effect】
According to the present invention, a reinforcing portion provided on the wheel apron as the front end is connected to the vehicle width direction outer end portion of the shroud, the wheel apron upper, front and rear direction of the vehicle in the vehicle width direction inside than the reinforcing portion A pair of left and right apron reinforcements that are connected to the upper part of the shroud in the vehicle width direction inside the connecting portion between the shroud and the reinforcing portion and connected to the wheel apron in the vehicle longitudinal direction. The shroud is integrated with a shroud upper and a shroud drawer connected to the shroud upper below the shroud upper, and the shroud is wide in the vertical direction, and both ends of the shroud in the vehicle width direction are in the vehicle width direction. The head is formed so as to extend from the front end of the apron reinforcement to the outside of the vehicle. Pump is a vicinity of a front end of the apron reinforcement in plan view, while being placed on the longitudinal extension of the apron reinforcement, and a connecting portion and at least the reinforcing portion shroud, the apron reinforcement and the shroud Because it is attached to the shroud across the connecting part, it is possible to meet the design requirements of setting the bonnet partition line regardless of the shape of the headlamp, and the headlamp can be assembled to the shroud. It is possible to achieve both of ensuring the above and preventing deterioration of dimensional accuracy due to an increase in the number of parts.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a front body structure of a vehicle according to the present invention.
FIG. 2 is a plan view of FIG.
FIG. 3 is a perspective view of a shroud.
FIG. 4 is a front view of a headlamp.
FIG. 5 is an enlarged plan view of a main part of FIG. 2;
6 is a partial cross-sectional view taken along line AA in FIG.
7 is a partial cross-sectional view taken along line BB in FIG.
8 is a cross-sectional view taken along the line CC of FIG.
FIG. 9 is a perspective view of an apron reinforcement.
FIG. 10 is a cross-sectional view showing another embodiment of the front body structure of the vehicle.
FIG. 11 is an explanatory diagram of a partition line in a conventional vehicle.
FIG. 12 is a cross-sectional view showing a front body structure of a conventional vehicle.
FIG. 13 is an explanatory diagram showing a design request for a vehicle including a partition line.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Front side frame 6 ... Shroud 13 ... Headlamp 14 ... Headlamp support part 26 ... Wheel apron 28 ... Reinforcement part 28a ... Substantially horizontal part 28b ... Vertical wall part 29 ... Apron reinforcement 32 ... Substantially horizontal plane alpha ... First Connection part (connection part)
β ... second connection part (connection part)

Claims (6)

A vehicle front body structure for attaching a headlamp to a shroud connected to a pair of left and right front side frames extending in the vehicle front-rear direction and provided at the vehicle front,
A pair of left and right wheel aprons connected to the front side frame to form a side wall of the front of the vehicle;
A reinforcing portion provided on the pair of left and right wheel aprons such that the front end is connected to the outer end of the shroud in the vehicle width direction;
In the upper part of the wheel apron, it extends in the vehicle longitudinal direction inside the vehicle width direction from the reinforcement part, and the front end is connected to the upper part of the shroud in the vehicle width direction inside the connection part between the shroud and the reinforcement part . A pair of left and right apron reinforcements connected to the wheel apron ,
The shroud is integrated with a shroud upper and a shroud drawer connected to the shroud upper below the shroud upper, and is wide in the vertical direction. Both ends of the shroud in the vehicle width direction are the apron rain in the vehicle width direction. It is formed to extend from the front end of the reinforcement to the outside of the vehicle,
The headlamp is installed on the longitudinal extension line of the apron reinforcement in the vicinity of the front end of the apron reinforcement in plan view, and includes at least a connecting portion between the reinforcing portion and the shroud, and an apron reinforcement. A front body structure of a vehicle attached to the shroud across a connecting portion with the shroud. The shroud is integrally formed with a headlamp support portion that is connected to the reinforcing portion at the outer end in the vehicle width direction and connected to the apron reinforcement at the top, and surrounds the headlamp.
2. The front body structure of a vehicle according to claim 1, wherein the headlamp is attached to the headlamp support. The front body structure of a vehicle according to claim 1 or 2, wherein a rear end of the reinforcing portion is connected to an intermediate portion in the front-rear direction of the apron reinforcement. 4. The vehicle front body structure according to claim 1, wherein the reinforcing portion is integrally formed with the wheel apron along an outer end in the vehicle width direction of the wheel apron. The front body structure of a vehicle according to claim 1, 2, 3, or 4, wherein a continuous substantially horizontal plane connected to a shroud lower part and a front side frame is formed at a front lower part of the wheel apron. 6. The front body structure of a vehicle according to claim 1, wherein the reinforcing part includes a substantially horizontal part and a vertical wall part following the substantially horizontal part.

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